Hi dear
Welcome to the board of Health care magic
Detailed History is missing from your query, like any
fever its duration, any pain, for how long
lymph nodes are swollen, any history of cough, any
weight loss.
headaches,
vomiting etc. They would have given more scope for better explanation.
By your description I can make out that the cervical lymphnode is enlarged and along with this axillary lymphnode is also enlarged.
Causes for such type of LN enlargement many be many.such as Tubercular lymphadinitis, any abnormal growth etc
Some relevant investigations apart from MRI also to be done like CBC, Pereferal Blood smear. ESR, CXR, FNAC of the lymphnode.
FNAC of the lymphnode may prove the diagnostic.
Hope your query is answered
Thanks